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Biosensors, Volume 15, Issue 5

2025 May - 69 articles

Cover Story: We present a graphene–quantum dot (QD) hybrid biosensor that achieves femtomolar sensitivity through a charge transfer-based quenching and recovery mechanism. Using single-layer graphene field-effect transistors (SLG-FETs) and time-resolved photoluminescence (TRPL), we demonstrate that photoluminescence quenching in QD–graphene hybrids results from static charge transfer rather than energy transfer. A simple analytical quantum mechanical model supports this interpretation. Electrical and optical signals show correlated responses to analyte concentration, enabling dual-mode detection. We validated the platform for biotin–streptavidin and IgG–anti-IgG interactions, achieving limits of detection down to 0.1 fM. These results establish a robust framework for next-generation, high-specificity biosensors. View this paper
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Articles (69)

  • Article
  • Open Access
1 Citations
1,382 Views
12 Pages

21 May 2025

Mueller matrix polarimetry has great potential for tissue detection and clinical diagnosis due to its ability to provide rich microstructural information accurately. However, in practical in vivo tissue imaging based on backscattering Mueller matrix...

  • Article
  • Open Access
12 Citations
1,449 Views
15 Pages

21 May 2025

Glucose (Glu) detection, as a fundamental analytical technique, has applications in medical diagnostics, clinical testing, bioanalysis and environmental monitoring. In this work, a solid-phase electrochemiluminescence (ECL) enzyme sensor was develope...

  • Article
  • Open Access
7 Citations
3,308 Views
15 Pages

Silver Nanoparticles for Biosensing and Drug Delivery: A Mechanical Study on DNA Interaction

  • Katarína Nemčeková,
  • Patrícia Dudoňová,
  • Tomáš Holka,
  • Sabína Balážová,
  • Michaela Hornychová,
  • Viktória Szebellaiová,
  • Monika Naumowicz,
  • Pavol Gemeiner,
  • Tomáš Mackuľak and
  • Veronika Svitková
  • + 1 author

21 May 2025

Silver nanoparticles (AgNPs) have attracted tremendous attention in recent years due to their unique physicochemical properties, including pronounced surface plasmon resonance, tunable size, and amenability to functionalization. These attributes unde...

  • Article
  • Open Access
4 Citations
1,412 Views
15 Pages

21 May 2025

The BRCA-1 protein, recognized for its diagnostic relevance in a wide spectrum of malignancies, has been the focus of extensive investigation. In this study, an electrochemical immunosensor specifically designed for BRCA-1 detection was fabricated. T...

  • Article
  • Open Access
1 Citations
1,904 Views
13 Pages

Molecularly Imprinted SERS Plasmonic Sensor for the Detection of Malachite Green

  • Hao Zhang,
  • Dani Sun,
  • Yuhao Wen,
  • Mengyuan Wang,
  • Jingying Huang,
  • Ziru Lian and
  • Jinhua Li

20 May 2025

Malachite green (MG) is a highly toxic dye commonly used in industries and aquaculture, leading to significant environmental contamination and health hazards. Therefore, sensitive and selective detection of MG in real samples is urgently needed. This...

  • Review
  • Open Access
3 Citations
2,231 Views
38 Pages

20 May 2025

Two-dimensional nanomaterials (2DNMs) exhibit significant potential for the development of functional and specifically targeted biosensors, owing to their unique planar nanosheet structures and distinct physical and chemical properties. Biomodificati...

  • Review
  • Open Access
3 Citations
1,967 Views
20 Pages

Convenient Biochemical Testing Technologies for Oral Disease Risk Warning: Opportunities and Challenges

  • Ying Liu,
  • Jincheng Xu,
  • Siyuan Wang,
  • Yuanfang Li,
  • Li Ji,
  • Dong Xie and
  • Jianhua Zhou

20 May 2025

In recent years, attention toward oral health issues has increased with economic development and improvements in quality of life. Biochemical testing technologies offer an efficient method for identifying insidious pathological changes in the oral ca...

  • Article
  • Open Access
2 Citations
1,276 Views
16 Pages

On the Possibility of Fluorescent Capture Immunoassays on a Contact Lens

  • Kundan Sivashanmugan,
  • E. Albert Reece and
  • Joseph R. Lakowicz

20 May 2025

Blood samples and testing are routine in healthcare. Presently, there is a growing interest in using tear samples in place of blood. Tear samples can be obtained non-invasively and collection does not require the skills of a trained phlebotomist. Red...

  • Article
  • Open Access
3,289 Views
18 Pages

Strain Plethysmography Using a Hermetically Sealed MEMS Strain Sensor

  • Xinyu Jiang,
  • Brian Sang,
  • Haoran Wen,
  • Gregory Junek,
  • Jin-Woo Park and
  • Farrokh Ayazi

20 May 2025

We present a hermetically sealed capacitive microelectromechanical system (MEMS) strain sensor designed for arterial pulse waveform extraction using the strain plethysmography (SPG) modality. The MEMS strain sensor features a small form factor of 3.3...

  • Review
  • Open Access
7 Citations
4,195 Views
44 Pages

Recent Advances in Paper-Based Electronics: Emphasis on Field-Effect Transistors and Sensors

  • Dimitris Barmpakos,
  • Apostolos Apostolakis,
  • Fadi Jaber,
  • Konstantinos Aidinis and
  • Grigoris Kaltsas

19 May 2025

Paper-based electronics have emerged as a sustainable, low-cost, and flexible alternative to traditional substrates for electronics, particularly for disposable and wearable applications. This review outlines recent developments in paper-based device...

  • Article
  • Open Access
1,268 Views
15 Pages

A Nanoparticle-Based Immunoassay on Facemasks for Evaluating Neutrophilic Airway Inflammation in COPD Patients

  • Bartomeu Mestre,
  • Nuria Toledo-Pons,
  • Andreu Vaquer,
  • Sofia Tejada,
  • Antonio Clemente,
  • Amanda Iglesias,
  • Meritxell López,
  • Ruth Engonga,
  • Sabina Perelló and
  • Roberto de la Rica
  • + 1 author

19 May 2025

Patients with chronic obstructive pulmonary disease (COPD) often experience acute exacerbations characterized by elevated neutrophilic inflammation in the lungs. Currently, this condition is diagnosed through visual inspection of sputum color and vol...

  • Article
  • Open Access
2 Citations
1,303 Views
12 Pages

18 May 2025

Kanamycin (KanR) is a widely used antibiotic in human and veterinary medicine, as well as in food production and livestock breeding. However, its environmental residue and bioaccumulation in the food chain pose a great threat to human health. A real-...

  • Article
  • Open Access
4 Citations
3,859 Views
15 Pages

A Highly Sensitive Electrochemical Immunosensor for Cortisol Detection

  • Pritu Parna Sarkar,
  • Ali Ashraf,
  • Ahmed Hasnain Jalal,
  • Fahmida Alam and
  • Nazmul Islam

17 May 2025

In this research, an interdigitated gear-shaped working electrode is presented for cortisol sensing. Overall, the sensor was designed in a three-electrode system and was fabricated using direct laser scribing. A synthesized conductive ink based on gr...

  • Article
  • Open Access
1 Citations
1,654 Views
16 Pages

MIP-Modified Porous Silicon Optical Sensor for Interleukin-6 Label-Free Quantification

  • Valeria Nocerino,
  • Giulia Siciliano,
  • Monica Bianco,
  • Ilaria Rea,
  • Principia Dardano,
  • Maria Serena Chiriacò,
  • Francesco Ferrara,
  • Giuseppe Gigli,
  • Elisabetta Primiceri and
  • Luca De Stefano

17 May 2025

In this study, we present an innovative optical biosensor designed to detect Interleukin-6 (IL-6), a pivotal cytokine implicated in many pathological conditions. Our sensing platform is made of a porous silicon (PSi) nanostructured substrate modified...

  • Article
  • Open Access
1 Citations
1,310 Views
11 Pages

Colorimetric Detection of microRNA-378 Based on Y-Shaped Structure Formed by Gold Nanoparticles and Catalytic Hairpin Self-Assembly

  • Yahui Gao,
  • Jinru Pan,
  • Bingyuan Fan,
  • Shan Wang,
  • Qian Wang,
  • Wanru Liu,
  • Fang Hu and
  • Wei Meng

15 May 2025

The timely and accurate detection of cancer is crucial for preventing disease progression and for the early treatment of confirmed cases. MiRNAs are cancer markers. In this study, a simple miRNA detection method is proposed. Three hairpins were desig...

  • Article
  • Open Access
1,420 Views
11 Pages

15 May 2025

Rolling circle amplification (RCA) at ambient temperature is prone to false positive signals during nucleic acid detection, which makes it challenging to establish an efficient RCA detection method. The false positive signals are primarily caused by...

  • Article
  • Open Access
1,538 Views
12 Pages

Development of Immunoassays for Foodborne Pathogenic Bacteria Detection Using PolyHRP for Signal Enhancement

  • Yijia Zhang,
  • Junkang Pan,
  • Qiyi He,
  • Zhihao Xu,
  • Bruce D. Hammock and
  • Dongyang Li

15 May 2025

The rapid and accurate detection of foodborne pathogens is essential for ensuring food safety. Escherichia coli O157:H7 (E. coli O157:H7) and Salmonella Typhimurium (S. Typhimurium) are major foodborne pathogenic bacteria that pose significant public...

  • Article
  • Open Access
3 Citations
2,565 Views
13 Pages

15 May 2025

The performance of heterophase immunoassays is often limited by the kinetics of analyte binding. This problem is partially solved by bead-based assays, which are characterized by rapid diffusion in the particle suspension. However, at low analyte con...

  • Article
  • Open Access
3 Citations
1,183 Views
15 Pages

14 May 2025

Copper-thiolate nanostructures, formed through the self-assembly of cysteine (Cys) and glutathione (GSH) with copper ions, offer a versatile platform for redox-active applications due to their structural stability and chemical functionality. In this...

  • Article
  • Open Access
5 Citations
1,797 Views
19 Pages

14 May 2025

Precise analysis of electroencephalogram (EEG) signals is critical for advancing the understanding of neurological conditions and mapping brain activity. However, accurately visualizing brain regions and behavioral patterns from neural signals remain...

  • Article
  • Open Access
4 Citations
1,235 Views
14 Pages

14 May 2025

Lateral flow immunoassay (LFIA) is a promising tool for rapid detection in the field of agricultural product analysis due to its advantages of cost-effectiveness and operational simplicity. In this work, Eu metal–organic frameworks (MOFs) were...

  • Review
  • Open Access
8 Citations
4,127 Views
22 Pages

Challenges in Adapting Fibre Optic Sensors for Biomedical Applications

  • Sahar Karimian,
  • Muhammad Mahmood Ali,
  • Marion McAfee,
  • Waqas Saleem,
  • Dineshbabu Duraibabu,
  • Sanober Farheen Memon and
  • Elfed Lewis

13 May 2025

Fibre optic sensors (FOSs) have developed as a transformative technology in healthcare, often offering unparalleled accuracy and sensitivity in monitoring various physiological and biochemical parameters. Their applications range from tracking vital...

  • Communication
  • Open Access
1,833 Views
10 Pages

Wearable Humidity Sensor Using Cs3Cu2I5 Metal Halides with Hydroxyl Selective Phase Transition for Breath Monitoring

  • Si Hyeok Yang,
  • Lim Kyung Oh,
  • Dong Ho Lee,
  • Donghoon Gwak,
  • Nara Song,
  • Bowon Oh,
  • Na Young Lee,
  • Hongki Kim,
  • Han Seul Kim and
  • Jin Woo Choi

13 May 2025

The low-dimensional metal halide Cs3Cu2I5 exhibits unique electrical and chemical properties. Notably, it undergoes a phase transition to CsCu2I3 upon exposure to hydroxyl (-OH) gas, resulting in significant changes in its electrical characteristics....

  • Article
  • Open Access
2,168 Views
13 Pages

Individually Modified Microneedle Array for Minimal Invasive Multi-Electrolyte Monitoring

  • Ketian Yu,
  • Yukun Ma,
  • Yiming Wei,
  • Wanying Chen,
  • Zhen Dai,
  • Yu Cai,
  • Xuesong Ye and
  • Bo Liang

12 May 2025

Electrolytes play crucial roles in regulating nerve and muscle functions. Currently, microneedle technology enables real-time electrolyte monitoring through minimally invasive methods. However, due to the small size of microneedles, performing multi-...

  • Article
  • Open Access
5 Citations
2,524 Views
14 Pages

12 May 2025

Genetic mutation detection for colorectal cancer (CRC) is crucial for precision diagnosis and treatment, yet current methods often suffer from challenges such as low sensitivity, time consumption, and high costs. In our preliminary bioinformatic anal...

  • Review
  • Open Access
17 Citations
9,641 Views
45 Pages

12 May 2025

This review highlights the latest developments in wearable electrochemical glucose sensors, focusing on their transition from invasive to non-invasive and minimally invasive designs. We discuss the underlying mechanisms, performance metrics, and prac...

  • Article
  • Open Access
1 Citations
1,894 Views
14 Pages

A Microfluidic Device Integrating a Glucose Sensor and Calibration Function for Cell-Based Assays

  • Laner Chen,
  • Kenta Shinha,
  • Hiroko Nakamura,
  • Kikuo Komori and
  • Hiroshi Kimura

11 May 2025

Microphysiological systems (MPS) incorporating microfluidic technologies offer improved physiological relevance and real-time analysis for cell-based assays, but often lack non-invasive monitoring capabilities. Addressing this gap, we developed a mic...

  • Article
  • Open Access
1 Citations
1,795 Views
19 Pages

11 May 2025

Urinary incontinence affects many women, yet there are no monitoring devices capable of accurately capturing flow dynamics during everyday activities. Building on our initial development of a wearable personal uroflowmeter, this study enhances the de...

  • Article
  • Open Access
1 Citations
1,366 Views
21 Pages

Gait Phase Recognition in Multi-Task Scenarios Based on sEMG Signals

  • Xin Shi,
  • Xiaheng Zhang,
  • Pengjie Qin,
  • Liangwen Huang,
  • Yaqin Zhu and
  • Zixiang Yang

10 May 2025

In the human–exoskeleton interaction process, accurately recognizing gait phases is crucial for effectively assessing the assistance provided by the exoskeleton. However, due to the similarity in muscle activation patterns between adjacent gait...

  • Article
  • Open Access
1,208 Views
16 Pages

Multi-Parametric Electrochemical Sensing Platform: Applications in Animal Welfare

  • C. Ferreira,
  • E. Lynch,
  • A. O’Herlihy,
  • F. Barry,
  • L. C. Nagle,
  • S. R. Teixeira and
  • P. Galvin

10 May 2025

The rapid growth of the dairy sector requires advanced monitoring tools to ensure sustainable practices that benefit the environment, economy, and human health. Current monitoring devices often lack multi-parametric capabilities, limiting their abili...

  • Article
  • Open Access
1,038 Views
16 Pages

AFM-Based Monitoring of Enzymatic Activity of Individual Molecules of Cytochrome CYP102A1

  • Yuri D. Ivanov,
  • Natalia S. Bukharina,
  • Ivan D. Shumov,
  • Oleg N. Afonin,
  • Vadim Y. Tatur,
  • Anna V. Grudo and
  • Alexander I. Archakov

10 May 2025

Herein, we report the use of a nanotechnology-based approach for the study of enzyme-functionalized mica surfaces. Atomic force microscopy (AFM) has been employed for the determination of the catalytic activity of single molecules of heme-containing...

  • Article
  • Open Access
2 Citations
1,688 Views
11 Pages

The accurate and sensitive detection of tumor-derived exosomes holds significant promise for the early diagnosis of cancer. In this study, an electrochemical aptasensor was developed for the high-performance detection of exosomes by integrating dual-...

  • Article
  • Open Access
2 Citations
4,184 Views
13 Pages

Understanding the biochemical relationship between serum and dermal interstitial fluid (dISF) is critical for advancing minimally invasive diagnostics with wearables and point of care devices focusing on most relevant biomarkers accessible in the ISF...

  • Article
  • Open Access
1,065 Views
17 Pages

Molecular Association Assay Systems for Imaging Protein–Protein Interactions in Mammalian Cells

  • Sung-Bae Kim,
  • Tadaomi Furuta,
  • Suresh Thangudu,
  • Arutselvan Natarajan and
  • Ramasamy Paulmurugan

Molecular imaging probes play a pivotal role in assaying molecular events in various physiological systems. In this study, we demonstrate a new genre of bioluminescent probes for imaging protein–protein interactions (PPIs) in mammalian cells, n...

  • Article
  • Open Access
5 Citations
1,215 Views
16 Pages

This study presents a proof-of-concept evaluation of optimized whole-cell biosensors designed for the real-time detection of crop infections. Genetically engineered luminescent bacterial strains were used to detect volatile organic compounds (VOCs) e...

  • Article
  • Open Access
6 Citations
2,263 Views
16 Pages

Colloidal noble metal nanoparticle aggregates have demonstrated significant advantages in surface-enhanced Raman scattering (SERS) analysis, particularly for online detection, due to their excellent optical properties, spatial homogeneity, and fluidi...

  • Review
  • Open Access
11 Citations
8,134 Views
45 Pages

Review of Non-Invasive Imaging Technologies for Cutaneous Melanoma

  • Luke Horton,
  • Joseph W. Fakhoury,
  • Rayyan Manwar,
  • Ali Rajabi-Estarabadi,
  • Dilara Turk,
  • Sean O’Leary,
  • Audrey Fotouhi,
  • Steven Daveluy,
  • Manu Jain and
  • Kamran Avanaki
  • + 2 authors

Imaging technologies are constantly being developed to improve not only melanoma diagnosis, but also staging, treatment planning, and disease progression. We start with a description of how melanoma is characterized using histology, and then continue...

  • Review
  • Open Access
13 Citations
4,460 Views
23 Pages

Advancements in carbon nanotube-based FET (CNT-FET) biosensors from 2016 to 2025 have boosted their sensitivity, specificity, and rapid detection performance for biomedical purposes. This review highlights key innovations in transducer materials, fun...

  • Article
  • Open Access
1 Citations
2,729 Views
13 Pages

Rapid and Highly Sensitive Detection of Ricin in Biological Fluids Using Optical Modulation Biosensing

  • Eliana Levy,
  • Linoy Golani-Zaidie,
  • Shmuel Burg,
  • Efi Makdasi,
  • Ron Alcalay,
  • Reut Falach,
  • Ofir Schuster and
  • Amos Danielli

Ricin, a highly toxic glycoprotein derived from the seeds of Ricinus communis, poses significant risks in bioterrorism and toxicology due to its rapid absorption and ease of dissemination. Rapid, ultra-sensitive detection is crucial for timely medica...

  • Article
  • Open Access
4 Citations
2,601 Views
18 Pages

Extracellular vesicles (EVs) have emerged as promising biomarkers and therapeutic agents, yet their quantification remains technically challenging due to the limitations of conventional methods. Here, a low-cost, fluorescence-based, paper-strip immun...

  • Review
  • Open Access
4 Citations
3,006 Views
13 Pages

Quantification of Cisplatin Encapsulated in Nanomedicine: An Overview

  • Ziwen Zhang,
  • Jiayu Chen,
  • Tao Wen,
  • Hong Deng,
  • Yiyi Zhang,
  • Hua Guo,
  • Hui Chang,
  • Haiyan Xu and
  • Weiqi Zhang

Cisplatin, which kills cancer cells mainly through DNA crosslinking, has been widely used as a first-line chemotherapeutic agent although it also causes severe side effects. To improve anticancer outcomes, various types of cisplatin-based nanomedicin...

  • Review
  • Open Access
42 Citations
4,036 Views
45 Pages

This investigation presents an overview of various optical biosensors utilized for the detection of cancer cells. It covers a comprehensive range of technologies, including surface plasmon resonance (SPR) sensors, which exploit changes in r...

  • Article
  • Open Access
7 Citations
1,437 Views
12 Pages

The dual-signal output self-calibration mode reduces the false positive and negative signals of electrochemiluminescence (ECL) aptamer sensors. A competitive dual-signal ECL platform was designed for the ultrasensitive detection of kanamycin (KAN) us...

  • Review
  • Open Access
9 Citations
3,654 Views
54 Pages

Whole Cells of Microorganisms—A Powerful Bioanalytical Tool for Measuring Integral Parameters of Pollution: A Review

  • Maxim Cheliukanov,
  • George Gurkin,
  • Roman Perchikov,
  • Anastasia Medvedeva,
  • Tatyana Lavrova,
  • Tatyana Belousova,
  • Aleksandra Titova,
  • Yulia Plekhanova,
  • Sergei Tarasov and
  • Anatoly Reshetilov
  • + 4 authors

Microbial biosensors are bioanalytical devices that can measure the toxicity of pollutants or detect specific substances. This is the greatest advantage of microbial biosensors which use whole cells of microorganisms as powerful tools for measuring i...

  • Article
  • Open Access
2 Citations
2,486 Views
30 Pages

The electroencephalography (EEG)-based approach provides a promising low-cost and non-invasive approach to the early detection of pathological cognitive decline. However, current studies predominantly utilize EEGs from resting state (rsEEG) or task-s...

  • Review
  • Open Access
7 Citations
5,420 Views
48 Pages

In recent years, MXene-based materials have received extensive interest for a variety of applications, including energy storage, solar cells, sensors, photo-catalysis, etc., due to their extraordinary optoelectronic and physicochemical properties. MX...

  • Article
  • Open Access
2,019 Views
12 Pages

DNA information storage holds tremendous potential due to its scalability, long lifespan, and environmental sustainability. The synthesis and reading of complex DNA data structures are of central importance. In this work, we propose new encoding sche...

  • Article
  • Open Access
1,260 Views
20 Pages

Study on Detection Method of Sulfamethazine Residues in Duck Blood Based on Surface-Enhanced Raman Spectroscopy

  • Junshi Huang,
  • Runhua Zhou,
  • Jinlong Lin,
  • Qi Chen,
  • Ping Liu,
  • Shuanggen Huang and
  • Jinhui Zhao

Sulfadimethazine (SM2) is widely used in livestock and poultry farming, but its improper use can pose a serious threat to human health. Therefore, the detection of SM2 residues in livestock and poultry products, including duck blood, is of great sign...

  • Article
  • Open Access
3 Citations
2,501 Views
14 Pages

30 April 2025

This study introduces a cutting-edge, aptamer-based, planar electric, double-layer field-effect transistor (FET) system that offers both high sensitivity and specificity for the detection of troponin I (TnI). The proposed sensing platform leverages t...

  • Review
  • Open Access
6 Citations
4,527 Views
24 Pages

30 April 2025

Single-molecule fluorescence technology stands at the forefront of scientific research as a sophisticated tool, pushing the boundaries of our understanding. This review comprehensively summarizes the technological advancements in single-molecule fluo...

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Biosensors - ISSN 2079-6374